grey signal bars, with no sim card

[mikecho]

i have a question, my s2 is showing grey signal bars but there isn't a sim card in the phone. what does this mean? is the phone send/receinving signal even though there is no sim card? if so can your phone still be tracked that way? dont want to sound paranoid, but its wierd

 

[Xyro]

It can vary with different android phones, and I don't have experience with your particular device, but I would say that's normal. Typically, all four or five signal bars are always visible in a dull grey, and then your actual signal level is drawn on top of that in white or a bright colour. For example, you can see the difference in bar colours here, where WiFi is a strong signal but the mobile signal is weak.

Although I'm unsure as to what you mean by the phone being tracked.